The methods of various openning-tube, specific opener, exhausting gases, and it is delivery to mass-spectrometer are briefly described in this paper.
本文叙述了各种开管方法、专用装置以及气体的引出和向质谱计管的输送。
It is necessary to solve openning-tube sampling problem for the mass-spectrometer analysis of residual gases in sealed vacuum devices.
密封真空器件内残气的质谱分析，必须解决开管取样技术问题。
The present paper has described the die made by chromium car - bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.
介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。
Using the helium mass-spectrometer leak detector to detect the leak of seams between the tube and face-flange and measure the total leakage rate are introduced in this paper.
介绍了核电站蒸汽发生器管子-管板焊缝的氦质谱检漏及总漏率测试方法的研究及为提高检测灵敏度所采取的措施。
Using the helium mass-spectrometer leak detector to detect the leak of seams between the tube and face-flange and measure the total leakage rate are introduced in this paper.
介绍了核电站蒸汽发生器管子-管板焊缝的氦质谱检漏及总漏率测试方法的研究及为提高检测灵敏度所采取的措施。
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